Comparative Evaluation Of Post Obturation Materials On Reinforcement Of Peri-Cervical Dentin (PCD)-An Invitro Study
نویسندگان
چکیده
Aim: To evaluate invitro the effect of post obturation materials on reinforcement of peri-cervical dentin (PCD) Materials and Method : Sixty extracted, maxillary premolar teeth were selected.After preparation of standardized access, crowns were resected so that a final dimension of 4 mm from one mm below highest point of proximal cervical line was achieved. Then, the enamel was carefully removed.After obturation with gutta percha and AH plus sealer, post obturation protocol was followed: Group 1: Obturation + nRMGIC, Group 2: Obturation + silorane composite , Group 3: obturation + temporary cement and Group 4: No obturation + temporary cement.The specimens were tested for fracture resistace in universal testing machine.Data was analysed with student ‘t’ test and one way ANOVA. Results: Samples restored with nRMGIC and silorane composite presented with higher mean fracture resistance values of 941.20 & 929.17 N respectively when compared to obturated samples with tempoarary (490.50 N) followed by unbturated samples with temporary(396.11N) Conclusion: nRMGIC and silorane composite significantly reinforce PCD.Obturation also plays an important role in reinforcement of PCD.
منابع مشابه
Evaluation of the effect of two different desensitizing agents on shear bond strength of universal adhesive resin (an invitro study )
Background and Aim: dentin desensitizers may affect dentin organic matrix properties or occlude dentinal tubules which may have adverse effects on the bonding performance of adhesive systems. The aim of this study was invitro evaluation of Gluma desensitizer and Tokuyama Shield Plus effects or shear bond strength of (BISCO) all-bond universal bonding system. Materials and Methods: 30 caries f...
متن کاملAn evaluation of the quality of the apical seal using a dentin bonding agent as a sealer with the single cone gutta percha obturation technique
An evaluation of the quality of the apical seal using a dentin bonding agent as a sealer with the single cone gutta percha obturation technique Dr. S. Moradi * - Dr. H. Gorjestani ** * Assistant Professor of Endodontics Dept., Faculty of Dentistry, Mashhad University of Medical Sciences. ** Assistant Professor of Endodontics Dept., Faculty of Dentistry, Kerman University of Medical Sciences. Ab...
متن کاملEvaluation of different materials used for post construction and stress distribution in the radicular dentin using finite element method
Evaluation of different materials used for post construction and stress distribution in the radicular dentin using finite element method Dr. S. Nokar *- Dr. AS. Mostafavi ** *Assistant Professor of Prosthodontics Dept., Faculty of Dentistry, Tehran University / Medical Sciences. **Resident of Prosthodontics Dept., Faculty of Dentistry, Tehran University / Medical Sciences. Abstract Background a...
متن کاملEvaluation of healing in the periapical lesions of dogs with or without obturation in prepared root canals
Evaluation of healing in the periapical lesions of dogs with or without obturation in prepared root canals Dr. MH Nekoofar* - Dr. D. Shirani ** - Dr. P. Motahari*** - Dr. S. Khanzadi**** - Dr. M. Ghandi***** *- Assistant Professor of Endodontics Dept. - Faculty of Dentistry - Tehran University of Medical Sciences. **- Assistant Professor of Internal Medicine Dept. Faculty of Veterinary – Tehran...
متن کاملCone beam computed tomographic evaluation of two access cavity designs and instrumentation on the thickness of peri-cervical dentin in mandibular anterior teeth
BACKGROUND AND OBJECTIVES The aim of the study was to determine the effect of two access cavity designs on the peri-cervical dentin thickness before and after instrumentation using cone beam computed tomography (CBCT). MATERIALS AND METHODS Sixty mandibular anterior teeth were divided into two groups of thirty teeth each: Group I: conventional access cavity preparation, where access was prepa...
متن کامل